Appendix C Glossary - Zhone IMA CS-200 System Reference Manual

Glossary
This Appendix lists the glossary of terms used in the telecommunications industry today.
AAL
ATM Adaption Layer
ABCD bits
The bits that carry signaling information over a T1 or E1 line.
ABR
Available Bit Rate
ACAMI
Alternate Channel AMI, transmitting data on every other DS0 in a DS1 to ensure ones-density.
ACO
Alarm Cutoff
ACS
Advanced Communications Server
ADPCM
Adaptive Differential Pulse Code Modulation
ADPCM port
A resource port used to compress voice or subrate data on a DS0.
ADSL
Asymmetric Digital Subscriber Line
aggregate
A single bitstream combining many bitstreams of lower rates.
Glossary -1